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RE: Vintage Luxman Tube Gear [Ping: Interstage Tranny]

Hi, Plato65. CL-34 would be my pick to rebuild. 4-12AX7 4-12AU7.
Start with power supply caps. This model was US imported. Voltage
in is no problem. I suggest you look at Conrad-Johnson in the pre-amp
department. You might not be able to get the amp back in its enclosure
due to C sizes. I would not at this time select MQ68c. It takes JP output
tubes that have been scarce for 3 decades. There are Sino copies that are
horrible. I am working on using a triode wired sweep tube as replacement but it will still require an outboard power supply as the original tubes
50-CA10 have a 50 volt filament! The MB-3045 is a pure gem. Again you must rebuild the power supply. It requires caps rated to 550 surge. The first is a dual, second triple, and so on. B+ is 480. Do not use just
a 500V rated C here. Tim de P. was inspired by the McIntosh circuit but
he goes beyond. Original output tubes, 8045G, are also extinct. There
are copies, Sino copies, I would suggest avoiding. I am looking to use
KT-120 instead of 6550/KT-88. These amps are so good as to shame other
P-P designs. The output transformers are excellent. Quadfilar wound primaries. The amp chassis is only 1" deep so be prepared to get creative
as far as fitting things is concerned. You can run them with EL34 but
will produce much less power than 6550/KT-88. PM me if you want more
detailed info. I note you do not receive AA mail.


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  • RE: Vintage Luxman Tube Gear [Ping: Interstage Tranny] - elektron 05/27/1412:49:34 05/27/14 (0)

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